docs: def _get_after_tld_chars(self):
          """
          Initialize after tld characters
          """
          after_tld_chars = set(string.whitespace)
          after_tld_chars |= {'/', '\"', '\'', '<', '>', '?', ':', '.', ','}
          # get left enclosure characters
          _, right_enclosure = zip(*self._enclosure)
          # add right enclosure characters to be valid after TLD
          # for correct parsing of URL e.g. (example.com)
          after_tld_chars |= set(right_enclosure)
  
          return after_tld_chars